In DECRYPTO, two teams of 2 to 4 players each compete against one another to see who the best codemasters are (rules for 3-player games are explained at the end of the rulebook). Your goal is to transmit codes to your teammates without letting the opposing team intercept them. Therefore, your communications should be clear enough for your team to understand, but vague enough to confound your opponents. You are also attempting to intercept your opponents’ codes.